diff --git a/.swift-version b/.swift-version
deleted file mode 100644
index 9f55b2c..0000000
--- a/.swift-version
+++ /dev/null
@@ -1 +0,0 @@
-3.0
diff --git a/DesignableButton/DesignableButton.xcodeproj/project.pbxproj b/DesignableButton/DesignableButton.xcodeproj/project.pbxproj
index b5fa5ba..c8acf72 100644
--- a/DesignableButton/DesignableButton.xcodeproj/project.pbxproj
+++ b/DesignableButton/DesignableButton.xcodeproj/project.pbxproj
@@ -303,12 +303,15 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 2E23KCX8SU;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = DesignableButton/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.DesignableButton;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -317,12 +320,15 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 2E23KCX8SU;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = DesignableButton/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.DesignableButton;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 4.2;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
diff --git a/DesignableButton/DesignableButton/AppDelegate.swift b/DesignableButton/DesignableButton/AppDelegate.swift
index 0ac8d92..8772af3 100644
--- a/DesignableButton/DesignableButton/AppDelegate.swift
+++ b/DesignableButton/DesignableButton/AppDelegate.swift
@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     var window: UIWindow?
 
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
         
         DesignableButton.setDesignableStyles()
diff --git a/DesignableButton/DesignableButton/DesignableButton+Styles.swift b/DesignableButton/DesignableButton/DesignableButton+Styles.swift
index 901663b..6a1aabc 100644
--- a/DesignableButton/DesignableButton/DesignableButton+Styles.swift
+++ b/DesignableButton/DesignableButton/DesignableButton+Styles.swift
@@ -21,18 +21,18 @@ extension DesignableButton {
         
         DesignableButton.setStyle(style: { (designableButton: DesignableButton) -> Void in
             if designableButton.isHighlighted || designableButton.isSelected {
-                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControl.State())
                 designableButton.backgroundColor = designableButton.selectedColor ?? Color.redSelected()
                 designableButton.layer.borderColor = designableButton.selectedColor?.cgColor ?? Color.redSelected().cgColor
                 designableButton.layer.borderWidth = designableButton.borderWidth ?? 0
             } else if designableButton.isEnabled {
-                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControl.State())
                 designableButton.backgroundColor = designableButton.defaultColor ?? Color.red()
                 designableButton.layer.borderColor = designableButton.defaultColor?.cgColor ?? Color.red().cgColor
                 designableButton.layer.borderWidth = designableButton.borderWidth ?? 0
             }
             else {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.gray(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.gray(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.disabledColor ?? Color.grayLightest()
                 designableButton.layer.borderColor = designableButton.borderColor?.cgColor ??  Color.gray().cgColor
                 designableButton.layer.borderWidth = designableButton.borderWidth ?? 1
@@ -45,14 +45,14 @@ extension DesignableButton {
         
         DesignableButton.setStyle(style: { (designableButton: DesignableButton) -> Void in
             if designableButton.isHighlighted || designableButton.isSelected {
-                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? UIColor.white, for: UIControl.State())
                 designableButton.backgroundColor = designableButton.selectedColor ?? Color.redSelected()
             } else if designableButton.isEnabled {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.red(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.red(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.defaultColor ?? UIColor.white
             }
             else {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.grayLight(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.grayLight(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.disabledColor ?? Color.grayLightest()
             }
             designableButton.setTitle(designableButton.titleLabel?.text, for: .normal)
@@ -64,27 +64,27 @@ extension DesignableButton {
         
         DesignableButton.setStyle(style: { (designableButton: DesignableButton) -> Void in
             if designableButton.isHighlighted {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.redSelected(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.redSelected(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.selectedColor ?? Color.red()
                 designableButton.tintColor = Color.redSelected()
             }
             else if designableButton.isSelected {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.redSelected(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.redSelected(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.selectedColor ?? UIColor.clear
                 designableButton.tintColor = Color.redSelected()
             } else if designableButton.isEnabled {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.red(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.red(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.defaultColor ?? UIColor.clear
                 designableButton.tintColor = Color.red()
             }
             else {
-                designableButton.setTitleColor(designableButton.customTextColor ?? Color.grayLight(), for: UIControlState())
+                designableButton.setTitleColor(designableButton.customTextColor ?? Color.grayLight(), for: UIControl.State())
                 designableButton.backgroundColor = designableButton.disabledColor ?? UIColor.clear
                 designableButton.tintColor = Color.grayLight()
             }
             
             if isInterfaceBuilder {
-                designableButton.setImage(designableButton.image(for: .normal)?.withRenderingMode(UIImageRenderingMode.alwaysTemplate), for: .normal)
+                designableButton.setImage(designableButton.image(for: .normal)?.withRenderingMode(UIImage.RenderingMode.alwaysTemplate), for: .normal)
             }
             
             designableButton.alignImageAndTitleVertically()
diff --git a/IHDesignableButton.podspec b/IHDesignableButton.podspec
index fd00740..fce4482 100644
--- a/IHDesignableButton.podspec
+++ b/IHDesignableButton.podspec
@@ -23,4 +23,6 @@ Common button styles, such as corner radius, are also made available in Interfac
 
   s.framework       = "UIKit"
   s.requires_arc    = true
+
+  s.swift_version = '4.2'
 end
diff --git a/Sources/DesignableButton.swift b/Sources/DesignableButton.swift
index 168e678..2312dc9 100644
--- a/Sources/DesignableButton.swift
+++ b/Sources/DesignableButton.swift
@@ -133,13 +133,13 @@ open class DesignableButton: UIButton {
             
             if self.adjustsFontSizeToFitWidth {
                 // When dynamic text changes we need to redraw the layout
-                NotificationCenter.default.addObserver(forName: .UIContentSizeCategoryDidChange, object: nil, queue: OperationQueue.main) { [weak self] notification in
+                NotificationCenter.default.addObserver(forName: UIContentSizeCategory.didChangeNotification, object: nil, queue: OperationQueue.main) { [weak self] notification in
                     guard let strongSelf = self else { return }
                     strongSelf.setNeedsLayout()
                 }
             }
             else {
-                NotificationCenter.default.removeObserver(self, name: .UIContentSizeCategoryDidChange, object: nil)
+                NotificationCenter.default.removeObserver(self, name: UIContentSizeCategory.didChangeNotification, object: nil)
             }
         }
     }
@@ -172,7 +172,7 @@ open class DesignableButton: UIButton {
         
         layer.masksToBounds = layer.cornerRadius > 0
         
-        assert(self.buttonType == UIButtonType.custom, "Designable Button \"\(self.titleLabel?.text ?? "?")\" buttonType must be Custom")
+        assert(self.buttonType == UIButton.ButtonType.custom, "Designable Button \"\(self.titleLabel?.text ?? "?")\" buttonType must be Custom")
     }
 }